Pangani chikwangwani kuchokera ku spreadsheet kupita ku database
Mawotchi amapereka njira yokonzera yosungira, kuyang'anira ndi kulandira chidziwitso. Amatero pogwiritsa ntchito matebulo. Ngati mumadziŵa ma spreadsheets monga Microsoft Excel , mwinamwake mwakhala mukuzoloŵera kusunga deta mu mawonekedwe apamwamba. Sizowonjezereka kuti apange mapepala pamasamba.
Mafotokozedwe motsutsana ndi Masamba
Mazenera ndi abwino kwambiri kusiyana ndi mapepala a kusungirako deta zambiri, komabe, ndikusunga deta imeneyo m'njira zosiyanasiyana. Mukukumana ndi mphamvu ya mazenera nthawi zonse m'moyo wanu wa tsiku ndi tsiku.
Mwachitsanzo, mukalowa mu akaunti yanu ya banki yanu, banki yanu imatsimikizira kuti mukulowetsamo pogwiritsa ntchito dzina lanu ndi mawu anu achinsinsi ndikuwonetsera ndalama zanu ndikugulitsa. Ndidatabata yomwe ikugwira ntchito pamasewero omwe amayesa dzina lanu ndi mawu achinsinsi, ndikupatseni mwayi wanu. Mndandanda wazamasamba umasungira malonda anu kuti uwawonetse iwo ndi tsiku kapena mtundu, pamene mupempha.
Pano pali zochepa chabe zomwe mungathe kuchita pazinthu zomwe zingakhale zovuta, ngati zosatheka, kuzichita pa tsambalo:
- Pezani zolemba zonse zomwe zikugwirizana ndi zofunikira zina
- Sinthani zolemba zambiri
- Zolemba zojambula pamtanda m'mabuku osiyanasiyana
- Chitani zovuta zowerengera za aggregate
Tiyeni tikambirane zina mwa mfundo zofunika kumbuyo kwa database.
Zida za Database
Mndandanda wamatabuku uli ndi matebulo angapo. Mofanana ndi matebulo a Excel, matebulo ophatikizira ali ndi zipilala ndi mizere. Mzere uliwonse umagwirizana ndi chikhumbo , ndipo mzere uliwonse umagwirizana ndi rekodi imodzi. Gome lirilonse liyenera kukhala ndi dzina lapaderadera m'ndondomeko.
Mwachitsanzo, taganizirani tebulo lachinsinsi limene liri ndi mayina ndi manambala a foni. Mwinamwake mungakhazikitsa zipilala zotchedwa "FirstName," "LastName" ndi "TelephoneNumber." Ndiye inu mumangoyamba kuwonjezera mizera pansi pa zipilala zomwe zili ndi deta. Mu tebulo lakudziwitsani kwa bizinesi ndi antchito 50, tikhoza kuyendetsa tebulo yomwe ili ndi mizera 50.
Mbali yofunika pa tebulo ndi yakuti aliyense ayenera kukhala ndi chinsinsi chachinsinsi kuti mzere uliwonse (kapena mbiri) ukhale ndi malo apadera kuti uwone.
Deta yomwe ili mu database imatetezedwa kwambiri ndi zomwe zimatchedwa zovuta . Mavuto amatsata malamulo pa deta kuti awonetsere kuti ali ndi umphumphu. Mwachitsanzo, chosemphana chapadera chimatsimikizira kuti chinsinsi chakuyambirira sichitha kuphatikizidwa. Chitsulo cha cheke chimayang'anira mtundu wa deta yomwe mungalowemo-mwachitsanzo, Dzina lachonde lingavomereze mfundo zomveka bwino, koma malo amtundu wa chitetezo cha chitetezo ayenera kukhala ndi nambala yeniyeni. Pali mitundu yambiri ya zovuta, komanso.
Chimodzi mwa zinthu zamphamvu kwambiri pa deta ndikumatha kupanga mgwirizano pakati pa matebulo pogwiritsa ntchito makiyi akunja. Mwachitsanzo, mungakhale ndi tebulo la Amalonda ndi tebulo la Malamulo. Wotsatsa aliyense akhoza kulumikizidwa ndi dongosolo mu tebulo lanu la Malamulo.Thetebulo la Malamulo, palinso, lingagwirizane ndi tebulo la Zamalonda. Kukonzekera kotereku kuli ndi deta yachinsinsi ndipo imapangitsa kuti deta yanu isamangidwe kotero kuti muthe kukonza deta ndi gulu, m'malo moyesera kuika deta yonse mu tebulo limodzi, kapena magome angapo.
Dongosolo la Gulu la Zida (DBMS)
Mndandanda wachinsinsi umangokhala ndi deta. Kuti mugwiritse ntchito deta, mukufunikira Database Management System (DBMS). DBMS ndi deta yokhayokha, pamodzi ndi mapulogalamu onse ndi ntchito kuti atenge data kuchokera ku deta, kapena kuyika deta. DBMS imapanga mauthenga, imapangitsa malamulo okhudzana ndi malamulo a pansi pano ndi zovuta, ndipo imasunga maziko a database. Popanda DBMS, malo osungirako zinthu ndi mndandanda wa ziphuphu ndi zolemba zopanda tanthauzo.